NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-07-15 | 859-461-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | LEXINGTON | KY |
| 2025-06-25 | 859-909-4XXX | 4000–4999 | Assigned | NUSO, LLC | 732J | ALEXANDRIA | KY |
| 2025-06-25 | 859-909-7XXX | 7000–7999 | Assigned | NUSO, LLC | 732J | ALEXANDRIA | KY |
| 2024-12-11 | 859-365-9XXX | 9000–9999 | Assigned | NUSO, LLC | 732J | ALEXANDRIA | KY |
| 2024-12-11 | 859-909-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | ALEXANDRIA | KY |
| 2024-11-08 | 859-460-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | LEXINGTON | KY |
| 2024-08-22 | 859-456-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | LEXINGTON | KY |
| 2023-12-13 | 859-365-3XXX | 3000–3999 | Assigned | NUSO, LLC | 478J | ALEXANDRIA | KY |
| 2023-12-13 | 859-365-4XXX | 4000–4999 | Assigned | NUSO, LLC | 478J | ALEXANDRIA | KY |
| 2023-02-09 | 859-316-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | RICHMOND | KY |
| 2023-02-08 | 859-347-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | LEXINGTON | KY |
| 2020-08-31 | 859-365-1XXX | 1000–1999 | Assigned | NUSO, LLC | 478J | ALEXANDRIA | KY |
| 2018-02-05 | 859-249-1XXX | 1000–1999 | Assigned | NUSO, LLC | 551G | WINCHESTER | KY |
| 2013-02-13 | 859-337-1XXX | 1000–1999 | Assigned | NUSO, LLC | 551G | WINCHESTER | KY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.